Home / 1,987,830.57-2,981,390.93-528,885.38

Finding the Fourth Proportional to 1,987,830.57, 2,981,390.93 and 528,885.38

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Solution

The fourth proportional to 1,987,830.57, 2,981,390.93 and 528,885.38 is: 793,233.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,830.57 : 2,981,390.93 = 528,885.38 : x
  2. Step 2: Convert to fraction form
    1,987,830.57/2,981,390.93 = 528,885.38/x
  3. Step 3: Cross multiply
    1,987,830.57x = 2,981,390.93 × 528,885.38
  4. Step 4: Simplify right side
    1,987,830.57x = 1,576,814,057,390.22
  5. Step 5: Solve for x
    x = 1,576,814,057,390.22/1,987,830.57
  6. Step 6: Final answer
    x = 793,233.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.